Cultivator



May 1o, 1927. 1,628,181

J H. NIXON cuLTrvAToa Filed Feb. 2e.` 1925 9 sheets-sheet 2 b ou w v 'n 'n n 0 H C G m I 9** ATTORNEY WITNESS:

J. H. NlxoN CULTIYATOR m wn d .Gb 0% $1 W19 1,

Al IORNEY WITNESS:

May 10,1927. 1,628,181

J H. NIXON CULTIVATOR Filed Feb. 26. 1925 9 sheets-sheet 5 WITNESS: ATTORNEY May 10,1927. 1,628,181 J H. NIXON CULTIVATOR Filed Feb, ze, 1925 9 'sheets-sheet 6 ATTC RN EY WITNESS:

J H. NIXCDN CULTIVATOR May 1o, 14927.

Filed Feb. 2e. 1925 9 Sheets-Sheet '7 INVENTOR ATTORNEY WITNESS:

May 1o, 1927. 1,628,181l

J H. NIXON uLTIvAToR K Filed Feb. 26. 1925 9 sheets-sheet 9 Patented May 10, 1927.

UNITED STATES J HARTLEY Nixon, or woons'rown, New Jenaer.

CULTIVATOR.

Application filed February 26, 1925. Serial No. 11,810.

rlhis invention relates to agricultural implements, particularly to cultivators,- and has for its object the provision of a novel structure designed to be mounted upon a tractor of any ordinary or preferred type and to remain either permanently or removably attached thereto as preferred, the structure being formed as a complete and sepa-rate entity adapted to be manufactured and sold as such for mounting upon an already eXisting` tractor. It will be understood that, while I have illustrated the invention as comprising a framework and` other parts structurally separate from the tractor proper or from the power plant thereof, the invention is not necessarily limited to such a separate structure and can be embodied, as concerns many of its features, in a cultivator mechanism wherein the power plant forms a permanent part of the apparatus initially assen'ibled therewith.

Another object of the invention is to provide a device of this character embodying a peculiar frame construction designed to be secured upon a tractor in embracing or enclosing relation thereto whereby to attain the proper rigidity and strength requisite for hard service. i i

Still another object of the invention is to provide a device of the character specified equipped with pedal operated steering means replacing the steering gear formingk part of the original equipment of the tractor, the control being` so arrang'ed as to be within convenient reach of the drivers seat and con-v sequently easily operable without the use of the hands, the hands being thereby free for operating other control devices with which the machine is equipped.

A further object is to provide adevice of this character designed to be drawn along in straddling relation to a plurality of -rows of growing plants, thedevice being equipped with a plurality of ground implement carrying members all of which are adjustable tov facilitate working upon rows different distances apart, and certain of which may be moved by manual control means within ready reach of the operator to facilitate close cultivation of crooked rows.

The invention further contemplates the provision of a mechanism of the type and for the purposespeeilied which embodies various structural features of arrangement and combination which will insure ease in control and operation, positiveness in action, efficiency and durability in service` and which will also b e a general improvement in the art. i

With the above and other objects andadvantages in view, the invention consistsin Figure 5 is a fragmentary rear elevation showing certain of the ground engaging elei ments as elevated into inoperative position,

Figure 6 is a fragmentary plan view showing the i' adjustment features on a larger' scale, f

Figure 7 is a fragmentary side elevation or a view looking at the end of what is shown in Figure so as to illustrate the adjusting feature from a different position or angle, f i

Figure 8 is `a horizontal section shown rather diagrammatically illustrating different arrangements of the ground engaging elements, i

Figure 9 is a fragmentary side elevation showing a certain detailed feature,

Figure l0 is a. detail elevation, partly'in section, showing the yieldable mounting for the steering wheels,

Figures ll and 12 are fragmentary elevations showing the pedal means for effecting steering, k

Figure 1S is a detail sectional View through thel transmission mechanism for the caterpillar drive, i Figure llt is a detail plan view of a portion of the caterpillar structure,

Figure l5 is a side elevation thereof, n Figure lG is a detail perspective view of one of the links of the caterpillar drive,

Figure 1,7 is a detail elevation of one of` the control*leversfor raising and lowering the ground engaging implements or elements.`

Figurel is'a detail perspective view of one of the brackets mounted on the ,imple` .ment carrying bars,

fili

Figure 19 is a fragn-lentary elevation showing the mounting of one of the ground engaging implements,

Figure 2O is an elevation at right angles to Figure 19 with the implement support in section,

Figure f3.1 is a detail section tl'irough the implement support and one of the implements mounted thereon showing4 the adjustment feature,

Figure 22 is a plan view of what is shown in Figures 19 to' 21 inclusive.

Referring more particularly to the drawings,I 1 have shown the device as comprising` a frame designated broadly by the numeral 1. which frame may be constructed of any suitable or preferred number of bars which might be of channel, angle or other formation and of any suitable material and proper weight to give the necessary strength. The

general construction of this frame is such that it may be engaged upon a tractor indicated `gene 'ally at 2 in ei'i'ibracing or enclosing relation thereto, the frame extending beyond the front and back and also beyond both sides of the. tractor as clearly indicated in the drawings. While7 as stated aborc. the frame may be varied within wide limits, 'l have, in the present instance, represented it as including a forward inverted U-shaped member 3 arranged in straddling relation to the forward portion of the tractor. Located at opposite sides of the tractor near the rear portion thereof are upright bars Je which are preferably of channel formation and which. embracingly engage against the edges of the tractor dash for stil'lening purposes. .lhese uprights may be bolted or otherwise secured to the dash if such is found advisable. Secured to -the lower portions of the members i); and 1- is a htnfizaontally disposed U-shaped .member 5 which projects coiiisiderably beyond the. front of the tractor and which is preferably braced with respect to the member 3 by means of a diagonal member 6 located at each side. Stay or tie rods 7 arranged in crossed relation and secured to the members 3 and may also be provided for making the structure .more rigid. The frame may also include a horizontally disposed V- shaped member S secured to the upper portion of the member 3 with its arms diverging rearwardly and suitably secured to a horizontal cross member 9 which is suitably secured to the uprightfsv l. The frame also includes vertically arranged bar i11e111`l').eisr 10 opposite to and spaced laterally away from the member -1 and secured to or formed. integrally upon the horif/.o'ntal cross bar 9. Suitably mounted at the lower ends of the `vertical bar members 10 are ground engaging wheels 11 having flanges l2 thereon adapted to enter the ground and prevent side slipping'. of the machine. lfhese wheels of course support the irame to a certain cittent. rilhe arms of. the if-shaped member t5 project rearwardly beyond the cross har 9 and connected therewith are suitaliile braces 13 which are diagonally arranged and which are secured to the vertical bars it). its a mattei' of fact there may be any (.lcsired numA ber of braces loca ed at any desired points. a detail sucl as this being imma-teriaL espev cially in `view of the fact that very man); changes may be made within the scope of the invention.

Mounted at the forward end ot the fr; ne member 5 is an. open ended cylinder it of any desired construction and held in place by any preferred means. Slidably mounted within this cylinder is a member 15 carryingl a. bearing 1G rotatably supporting dirigible front wheels 17 of disk formation which are provided not only to partially support the forward end of the frame but also to cffect steering` of the entire machine. rthe member 15 is formed with a reduced egeY mi sion 1S encircled by a coil spring 19 locato. within the cylinder 14; and abutting against the closed upper end 2t) thereof. The etc-- tension 18 is further reduced to define what may be called a boit 21 s-:lidablc through the closed end of the cylinder and carry' a suitable nut 29 or the like. bViously. the .forward end of the machine is resilientlj.v supported by the spring 19 so that the frame of the machine may have a limited vertical movement with respect to the. wheels 1T. The formation of the bolt portion on the reduced extension 18 deli es a shoulder which is adapted to engage against the under side of the closed upper end '12,() of tl c cylinder 14- whereby to serve as a stop for limiting the relative movement. in order that the machine may be steered. l. may provide a cross har slidably but nimrotatabiy engaged upon the upper end portion o' bolt 21, this particular manner of mann l permitting this cross member to remain in engagement with the upper end 2t) of the cylinder 1-1 even though the frame should move downwardly with respect to the wheels 1'? with the spring 19 under comin'ession. Firotally and slidably connected wir' ends of the cross piece 2st are clevises connections preferably con pins or boltsA 2G passing through the clevises so as to permit. the movement. These eleve-.es are rods 2S which. extend rcaiwrardly of the chine and which are pivotally connected 29 with armsl lll.) o i' pedals 251 located in c. venient reach of the feet of an operator ing on a suitable seat $52 mounted at he proper location on the frame as indicated. Obviously, the exact manner of mountlx 'f the pedals maj7 be raried within wide lim' though I have illustrated them as pivoted upon trunnions or stubs 33 projecting from brackets 34 suitably secured to the uprights 4.

In order that the machine may be prow pelled alongthe ground, l provide a eaterpilar drive 'which takes the place of the usual wheel drive provided ou tractors. flflfuwever, this caterpillar drive is of such wmstruction as to be operai ed 'by the transmission mechanism which forms part of the original equipment of the tractor so that the various control levers, pedals and the like of the transmission need not be disturbed inasmuchas they are employed in the control of the driving mechanism. In carrying out this featurev of the invention, the rear axle housings of the tractorI are disconnected and removed from thecentral portion of the housing indicated at 85 and are replaced by housing members 36. lVithin this central portion 35 is located the worm'wheel 37 carried by a shaft 38 and driven by a Worin 39 on the worm shaft 40 of the tractor transmission n'iechanism. Ordinarily, the shaft is of considerable length so as to drive the rear wheels of the tractor, but in apply ing my invention this shaft may be cut olf or replaced by a shorter one, as preferred. The housing members 36 are formed to accommodate the bearings 4l for the shaft 38, these bearings forming part of the original equipment in the transmission mechanism. The shaft 38 of course projects outwardly beyond the bearing members 4l and secured upon the projecting ends are sprockets 42 about which are trained chains 43 in turn peripherally engaged with other sprockets 44 on short shafts 45 j ournaled within bearings 46 suitably mounted in the housings 36. The shafts 45 carry sprockets 47 engaged by chains 48 which are in turn trained about other sprockets 49 on the rear shaft 50 of the caterpillar drive mechanism. Suitable bearings 5l are provided for the reduced end portions 52 of this shaft `50, these bearings including rollers 53. The caterpillar drive mechanism further includes longitudinally' extending bars 54 which extend to the hou-sings 36 and which are secured to the lower ends of the uprights 4. designates the front cross member of the tractor or a member which may be inserted to replace the usual front cross`member,`and secured thereto are castings 56 which are also bolted or otherwise suitably secured to the lower converging endsof the U-shaped front frame member 3. The caf-stings are also secured to the bars54 and are formed with bearing 57 for the front shaft 58 of the caterpillar drive. The shaft 5S carries a z-fiproclrct 59 for driving the caterpillar cha-in designated broadly by the ninneral 60, this chain being of course also engaged about al sprocl-etl on the shaft 50.

VYhile .it is of course true that the cater- The numeral pillar chain may be of any desired specific construction, I have in the presentinst-ance illustrated it as including a plurality of links 62 each of which niay, in actual practice, be formed from a single piece of sheet steel of suitable gage cut and siamped into form. Each link is here shown as ii'icluding a body portion l-.slit or cut at spaced points to deline a central tongue which is coiled or curled to forni a knuckle 64. The material outwardly of the slits or cuts is upstruek to define traction lugs 65 which are of course spaced apart but which are connected by transverse cleats 66 riveted or otherwise secured thereto. Outwardly of these slits or cuts the material is bent in a direction opposite to the direction of extension of the tongue at the center to delne bearing portions 67 which are of course spaced apart. `When a series of the links or units are placed together, it is obvious that the knuckle 64 of one will be disposed between the bearing portions 67 of the one next adjacent, there being a true interfitting relation. The end portions of each link are also formed to provide elongated portions 68 which will constitute a track, the tracks at the opposite sides of the caterpillar chain travelling upon and being supported by suitable rollers A69 journaled between the bars 54. Mounted within the interfitting knuckles 64 and the bearing portions y67 ofthese successive links are suitable bushings 70 through which extend shafts 7l held against longitudinal displacement as for instance by means of cotter pins 7 2 or their equivalent. `While the details of the caterpillar drive chain have been given it should be distinctly understood that some other type might be employed if found advisable for any reason whatsoever. Obviously, when the tractor mechanism is in operation power will be applied to the shaft 50 which will in turn drive the caterpillar chain so that the latter will effect the desired propelling action. f v

Suit-ably mounted at the outer ends of the cross member 9 are bearings 73 through which are slidably and rotatably engaged depending bars 74 which have their lower ends formed to provide arms' 75 curved rearwardly an d outwardly. It is preferable that these arms be braced by means of transversely extending tie rods 76. It may also be preferable to provide other braces 77, and for a reason to be hereinafter explained those portions of the arm members 75 adf 'acent the vertical )ortions 74 are u )wardl 'f l l .l

lli)

Si) having their lower ends rezuwardly o-X- uuded to deliue arms Si which are oppositely curved and toward each other as shown in Figure l. 'lhese arms are similar lo the arms 717i, are likewise upwardly ol'lsct aud are adapted to support ground engaging' elements or cultivator teeth to be described. hhirtheruiore.. these members are reentorced b v braces indicated at 82.

Slidably and rotatably mounted through other bearing; members 73u and located in advance ot the members 741 are other depending bars 8? carryii rearwardly extends iuej arms Slt located pi lei-ably in the same piane as the above i ncribed arms 75 and S1. Rotatable and s ,labio through bearing members 70 are depending bars located in advance ot' the bars 80 and carrying: at their lower ends rearwardly extending arms SG similar 'to the arms Set.

lll ot the arms 75, S1, Sd, and 8G are.

same type ot ground engager.` implements such as the cultivator teeth indicated at fis all ot these devices are the saine u description olf one will sutiice. The blade suovel, tooth, disk or the like S7 is carried by a shank 8S rotatably engaged through a tl-shaped clip 8S) and having` a squared upper end portion carrying; a disk 91 formed with a circumferential .series ot holes 02 through any one ot which may be passed a set-urine; pin 93 which also passes throuejh a suitable hole 94 in the ppcr arm ot he clip S9. rlfhe parts are secured in position by means ot a suitable nut 05 engaged upon the reduced and threaded upper end 90 oi the shank. rlhis nut will prevent longitiulinal movement in one direction, and movement in the other direction may be prevented by means ot a trans verse cotter or other pin 97 passingv through the shank and engaging against the under side oit the lower arm or clip 89. ny desired number ot these ground engaging implements may be applied to the various arms and it is obvious that they may be spaced any desired distances apart. ln Figure S l have shown one of rnc arms 75 as carrying three ot the ground engagingy implements located comparatively tar apart whereas in the saine lilip'ure l have shown one ot the arms S1 carrying; three oit the ground engaging elements located very close together, the :rrangement being" ininiaterial but dependirro; oi course upon the nature ot' the crop to be cultivated and other conditions which may exist. rl[he provision o't the circuinlfereutiai series of holes is very important `hummuch as it is obvious that when the `around engaging implements are mountl ed upon the curved arms 75 and 81 and are adjusted therealongi; unless some means be provided whereby the shank of the imple ment could be rotatably adjusted, certain of the teeth would itace directly forwardly adapted to carry the while others would be presented edgcwisc lo the line ot dra'lt. This of course would not be a practical leature and it is for this reason that the adjustment has been provided, so that regardless ot the position ot' the implements along,` the curved arms they may be regulated so as to face forwardly and exert the proper digging action upon the surface traveled over.

ln order that the members 7-1; and 83 may be moved vertically tor hitting` the ground engaging); elements out ot operative position, l provide a bracket device 98 mounted upon the upper ends of the adjacent members 74 and 83, these members havingreduced cylindrical portions 74a and 83, respectively, acting' as trunnions where they pass through the brackets. Each bracket 98 includes spaced web portions 99 between which .is arranged the outer end ot a vertically movable shittine lever 100, the lever being pivoted to the bracket 0S by means ot a suitable bolt 101 or the like passing;- through elon- `cated slots 102 in the web 99 so as to prevent binding when the lever swung. The levers are suitably pivoted at 103 on brackets 104i. and their inner ends approach conniara tively close to each other and terminate in handles 105 located within convenient reach ot the operator sitting` upon the seat 39.

ln order that the members 711 and 83 may be held at any desired position so that the ground engaging` implements carried thereby may he held either entirely out of engagement with the f {round or penetrating,T there into to any desired extent, I provide a pair ot notched segments 106 suitably secured' upon the trame and adapted to be engaged by lugs 107 projectingl from the handles 105. lt is preferable that the handles 105 be longitudinally movable in order that the lugs 107 thereon may he within or disengaged 'from the notches in the segments 10G so that the levers may be swung' tor adjusting;- the positions ot the members 7 t and 83.

In order that the members S0 and 85 carrying the arms 81 and 86, respectively, may be similarly moved in a vertical direction to control the depth ot penetration ot the ground engaging;` implements carried thereby or to litt the ground engalejrlgcg` implements out ot engagement with the `ground as for instance when the machine is travelling idle, I provide bracket devices 108 mounted on the upper ends of these members 80 and 85, the members having reduced portions 80 and S5 constituting trunnions ywhere they pass thro ugll these brackets. These brackets may be identical in construction with the brackets 98 and include Webs 109 spaced apart for the accommodation of shitting levers 110 which are pivoted between the webs by means of suitable bolts 111 or the like passing through elongated slots 112v in the Webs so as to prevent bind-ing. These levers CTI arepivoted on the pivots 103 which constitute the pivot points Ylor the levers 10U and connected with the inner ends thereoil` at the pointsv indicated at Il are depending eontrol rods or hars lli termed thrmighout the major portion oi: their length with notcl'ies 115, any selected one oi' which may be engaged with the edge oi a slot .liti in the member Sl, one ot these slots being provided li'or the accommodation and pas: ot each ot the control rods or bars 1l- At their lower ends, the rods or bars 111i` are equipped with handles 11T located within convenient reach ot the driver or operatoil so that they may be grasped to eiliect lateral swinging ot the members 11i; `and subsequent substantiaily vertical movement thereof so' as to swing the levers 11() and thereby control the positions oi the members 8() and 85 carrying the inner set o'l.' ground engaging implements.

It is intended that the members il and Si) be capable oiE swinging` adjustn'ientdepending upon the distance between successive rows ot growingY plants to be cultivated, and tor this reason die bearing members 73 and T) are equipped with laterally extending arms 118 and 119, respectively, movable over guide brackets 120 and 121 suitably mounted on the stationary trame. These brackets are termed with arcuate slots 122 and 123, respectively, and the arms 118 and 119`are aiilapted to beA secured in any desired adjusted position by means ot suitable bolts 124.-. This adjilstment is intended to be lett set after it has once been made depending upon the distance between rows. During the course ot cultivation ot a lield, it frequently occurs that a row is crooked or that some other condition may exist at some part which makes it advisable to shiit the position ot certain groi'ind engaging in'iplements in order to cultivate closely while avoiding tearing up any oil the pla-nts. 1Hor this rein son.v I have provided av manual means tor swinging the arms et and 86 to one side or the other, such means being under direct control ot the operator and being capable ot vbeing actuated at a momentis notice and while the machine is travelling along. 1n

carrying out this feature, I provide at each side ot the machine pivotaliy mounted se ments 3 connected by a rack bar 126 pivoiallv attached thereto. The rack is engaged by a pinion 12T carried by a shaft 12S suitably jo'urnaled through the frame and equipped with an operating handle 125) located within convenient reach ot the driver. 'llhc segments 1253 are termed with arcuate slots Il() through which pass suitable securin;r nuits or the like 131 for adjustabiy se curii'ig arms 1252 and il-f projecting laterally :troni the members 1'3"- and 79% respectively. The adjustment oi the arms 132 and 1253 with respect the segments will determine the angle at which the arms 84 and 86 extend toward each other and it is obvious that by making different adjustments these arms may he caused to approach each other to a greater or less extent as may he necessary according to the crop being cultivatifd. lt n'iay be pieter-able to provide coils or other springs 134- stationarily anchored at one end and connected with adjacent segment members 125 for the purpose of normally maintaining an intermediate or normal position and returning the parts to such normal position after actuation to swing the arms 84: and 86 in one direction or the other as the case may be.

The arms 84@ and 8G mayeach be ot' one piece it desired, though I have shown them as hollow `and telescopically receiving shank or extension elements 1255 on terminals 136 upon which the clips 89 of the ground engaging elements are mounted. By this means, the position otl the implements or their distance from the pivot points ot the arms may be varied to a considerable extent, as may be necessary. Any desired adjust ment may be maintained by means ot a set screw, or the like, 1361. The upward ottsettingl of the arms 75 and 81, above described, is to permit extreme lateral swinging of the short arms 84 and 8G, under certain conditions.

From the foregoing description and study of the drawings it is believed that the construction, operation and advantages of the machine will be readily apparent to one skilled in the art without further elaboration especially as the details of adjustment, mounting ot drive mechanism and arrangement ot' ground engaging elements have been appropriately set forth trom time to time.

Thile I have shown and described the preferred embodiment ol the invention, it should be understood that I reserve the right to make such changes in the form, construction and arrangement ot parts as will not depart from the spirit of the invention or the scope ot the subjoined claims.

.Having thus described the invention, I claim:

1. In a cultivator of the class described, the combination with a main frame, a power driven supporting` and driving means'tor the frame, and a manually controllable steering means for the fra-me in advance of the steering means, all ot' the said parts being narrow and adapted to travel between two rows of plants; of a wheel supported anxiliary frame located adjacent the rear of the main frame at one side thereof and arched to pass overa row otl plants; two sets ot' ground engaging cultivating tools carried respectively by the main frame and the auxiliary frame; means for adjusting the tools carried by the main trame vertically in parallelism; and other means supllo ported in parton the auxiliary tame and operable from the main frame for adjlisting the tools carried bytheauxiliary 'Frame verticarilly in parallelism.

2. ln a cultivator oit the class described, the con'ibination with a main frame, a power driven supporting and drivingv means for the trame, and manually controllable steering means "for the frame in advance ot the steering' means, all o'l the said parts beingl narrow and adapted to travel between two rows ol plants; of a wheel supported aux iiiary trame located adjacent the rear ot the main l'ramc at one side thereo't and arched to pass over a row of plants; two sets oit ground engaging cultivating tools carried rez-tpectively by the` main "traine and the auxiliary trame; and means operable .trom the main frame lor laterally adjusting some ot the tools of both sets relatively to their respective trames.

ln a cultivator ot the class described, the combination with a main iframe, a power driven supporting and drivingl means tor the trame, and a manually controllable steering` means :For the trame in advance of the steeriiybr means, all ot the said parts beingnarrow and adapted to travel between two ro vs ot' plants; of a wheel supported auf;- iliary iframe located adjacent the rear o1c the main iframe at one side thereof and arched to pass over a row ot' plants; two sets of ground engaging cultivating tools carried respectively by the main vtrame and the auX- iliary trame; and means operable lrom 'the main :trame for laterally adjusting` some of the tools of each of the two snnultaneously and in the same directions.

l. ln a cultivator of the class described, the combination with a main traine, a power driven supporting and driving1 means ttor the frame, and a manually controllable steering means `for the traine in adrance ,olf the steering means, all ot' the said parts being narrow and adapted to travel between two rows ol' plants; of a wheel supported auxiliary trame located adjacent the rear ot the main trame at one side thereof and arched to pass over a row .of plants; two sets of ground engaging cultivating tools carried respectively by the main frame and the auX- iliary trame; means for adjustingv the tools carried by the main trame vertically in parallelism; other means supported in part on the auxiliary trame and operable from the main frame tor adjusting' the tools carried by the auxiliary trame vertically in parallelism; and other means also operable from the main frame for laterally adjusting` some of" the tools ol1 each ot the two se f simultaneously and in the same directions.

5. ln a cult-ivator ot the class described, the combination with a main trame, a power driven supporting,` and driving' mea-ns for the frame, and a manually controllable steering nieaus tor the Vtrame, all of the said. parts being narrow and adapted lo travel between two rows ol? plants; ol a wheel supA ported zuixiliary trame lointed adjacent Ilarcar oit (he main l'rame al one side drei-"ol and arched lo pass over a row ol' plants; two closely adjacent angularly adjustable rertical bars carried by the auxiliary lrame adjacent the outer side ot the last said row: and arms connected respectively to the said bars near the lower ends thcreol and adapt` ed tor carrying;l cultivating;l tools.

(S. ln a cultivator olf the class described, the conibination with a main trame, a power driven sujiportine,- and driving means lor the iframe, and a manually controllable steering means iter the ilrame, all of the said parts being narrow and adapted to travel between two rows o't plants; of a wheel supported auxiliary trame located adjacent the rear of the main lrame at one side tliereo'lf and arched lo pass over a row ot piante-1' two closely adjacent angularly adjustable verlical liars carried by the auxiliary lirame adjacent the ,outer side o1"l the last said row, one ol" the said bars being direclly in liront of the other; and arms connected to the respective bars nar the lower ends thereof an; adapted for carrying cultivating tools, botl ot the said arms extending in generally rearward directions.

T. ln a cultivator ot the class described. the combination with a main trame, a power driven supporting and driving means it'or the trame, and a manually controllable steerlfl'l ml means lor the trame, all ot the said partel beine` narrow and adapted to travel between two rows oli' plants; ot a wheel .sup-- ported auxiliary trame located adjacent the rear of' the main trame at one side thercoif and arched to pass over a row ot plants: two closely adjacent anxajularl) adjustable verlical bars carried by the auxiliary trame ad` jacent the outer side olf the last said row; arms connected respectively to the said lan ,s near the lower ends thereolYA and ad: pled lor carryii'ip` cultivating tools; and mean; l'or verticali adjusting bolli ol the bars simultaneousl together with illearms coi-named thereto.

S. ln a cultivator olf the class described. the combination with a main lramc` a power driven supporting` and dri viingf means' Yi'or the trame, and a manually controlh ble su means for the trame, all oi the sad par..

llo

being' narrow and adapted lo' trawl laftwccn two rows` ol planis: ol' a wliee ported auxiliary trame locanal adjaiy the rear ot the main trame :it one `ide lhereot and arched Vto pass over a row o1 L) plant@ two closely adjacent :in ula adjustable vertical bars carried by the au l'rame adjacent the outer side ol' the said row: arms connected respectively lo v0 said bars near the lower endsl iliereo'l and lill adapted for carrying;` cultivating tools; and means adjacent the upper ends of the bars for emitrolling the angular adjustment thereof.

l). ln a cultivator ol' the class described, the combination with a main frame, a power driven supporting and driving;- means for the frame, and a manually coi'itroilable steering means for the frame, all of the said parts being' narrow and adapted to travel between 'two rows of plants; of a wheel supported auxiliary traine located adjace-nt the rear of the main-frame at one side thereof and arched to pass over. a row of plants; two closely adjacent angular-ly adjustable vertical bars carried by the auxiliary frame adjacent the outer side of the last said row; arms connected respectively to the said bars near the lowerI ends thereof and adapted for carrying cultivating tools; means for vert-ically adj Listing both 'of the bars siinultancously together with the arms connected thereto; and arms adjacent the upper ends of the respective bars for controlling the angular adjustment thereof, the said arrns beine,` held against vertical adjustment with the bars.

lO. In a cultivator of the class describe'd, the combination with a main frame, a, power driven supporting,` and driving' means for the frame, and a manually controllable steering means for the frame, all of the said parts being` narrow and adapted to travel between two rows of plants; of a wheel supported auxiliary frame located adjacent the rear of the main frame at one side thereo'l and arched to pass over a row of plantsgtwo closely adjacent angularly adjustable vertical bars` carried by the auxiliary' frame adjacent the outer side of the last said row; arms connected respectively to the said bars near the lower ends thereof and adapte for carrying: cultivatingtools; arms adjacent the upper. endsvof the respective bars for controllingl the angular adjustment thereof.; and two segments for holdingthe respcctrfe adjustine' arms in adjusted position, one of the said segments being; in lixed relation to the frame and the other being` angularly mow able about the axis of the corresponding; bar.

ll. In a cultiva-tor of the class lflescribed the combination with a main frame, a 1Vlower driven supporting; and driving; means ir. the frame, and a iminually controllable steeringgj means for the frame, all of thc said parts being;lnarrow and adapted to travel between two rows of plants; of a wheel supported auxiliary frame located adjacent the rear of the main frame at one side thereof and arched to pass over a row of plant two closely adjacent angularly adjusralilc vertical bars carried by the auxiliary frame adjacent the outer side of the last said row; arms connected respectively to the said liars near the lower ends thereof and adapted for carrying cultivating` tools; two other closely adjacent angular-ly adjustable vertical bars carried by the main frame.adjacent the inner side of the last said row; and arms con-- nectcd respectively to 'l he last f-:aid bars near and adapted for the lower ends thereof carrying cultivating` tools.

l2. ln a cultivator of the class described, the combination with a main .trainer` a power driven supportingl and driving means for the frame, and a manually controllable :ueering` means for the frame, all of the said parts being narrow and adapted io travel between two rows of plants; of a wheel supported auxiliary :traine located adjacent the rear of the main frame at one side thereof and arched to pass over a row pants; two closely adjacent angularly adjustable vertical barsearried by the auxiliary frame adjacent the outer sido of the last said row; arms connected respectively to the said bars near the lower ends thereof and adapted for carrying cultivating tools; two other closely adjacent angularly adjustable vertical bars carried by the main frame adjacent the inner side of the last said row; arnis connected respectively to the last said bars near the vlower encs thereof and adapted for carrying cultivating` tools; and two in dependent means respectively adapted for vertically adjusting the first said bars simultaneously and the second said bars simultaneously.

ln a cultivator of the class described. the combination with a main frame a power driven supportine and driving' means the framea and a manually controllable steering' means for the frai'i'ie, all of the said parts being` narrow and adapted to travelY between two rows of plants; of a wheel supiorted auxiliary frame located adjacent the rear of the main frame at one side thereof and arched to pass over a row of plants: two closely adjacent annular-ly adjustable vvertical bars carried by the auxiliar;7 frame adjacent thc outer side of the last said row; arnis connected respectively to the said bars near the lower ends thereof and :ulapted for carrying' cultivating; tools; two other closely adjacent angufarly adjustable vertical bars carried by the main frame adjacent Ithe inner side of the last said row; arms connected respectively the last said bars near the lower ends thereof and adapted for carrying; cultivating tools; two pairs of arias adjacent the upper ends of the bars of the respective pairs: means for hohlingl` one arm of each pair in adjusted position: and i'iieaiis connecting the other arm of one pair with the other .gni of the other pai: for simultaneoui-ifangular adjustment. y

ll/l. ln a cultivator of the class descr-iluifrl1 the combination with a main frame a power driven s @porting and driving` means for the fraaie? and a n'iannally controllable lil) steeringl means tor the traine, all ot the said parts being narrow and adapted to travel bt-tweeu two ri'iws ot plants; ot" a wheel :'inpported auxiliary 'traine located :id- Ainvent the rear ot the iiiaiii ir: nie :it one .side thereot" and arched to pass over a row ot" plants; two closely adjacent aiie'uhirly :id jiistable vertical bars arried by the ain'- iliiiry traine adjacent the outer side of the last siid row; ariiis connected respectively to the said bars near the lower ends t'hereot' and adapted tor fai'i'yiiigr cultivating tools; two other close] adjacent ane'ularly adjust;- able verti al bars carried by the main traine adjacent' the inner side ot the .last said row; ariiis connected respectively to the last said bars near the lower ends diereoil and adapted lor farrji'iiigi' culti 'atiireY tools; two pairs ot arms adjacent the upper ends ot the bars ot he respective pairs; niea'is tor Lioldingi` one iriii ot each pair in adjusted position; a 'insverse link connecting: the other ariii ol zit one pair with the other ariii ot the other iii'; and means comprising' a rack pinion tor moving' the said linl; endivise to idjust the last said arms simultaneously.

In a cultivator ot the class described, the combination with a main trame, a power driven supporting' and driving means ttor the traine` and a inanualy controllable steering` means tor the traine. all ol the said parts being narrow and adapted to travel between two rows of plants; ot a wheel supported auxiliary 'trame located adjacent the rear ot the inain trame at one side tliereot and arched to pass over a row of plants; two closely adjacent angularly adjustable v .rtical bars carried by th auxiliary 'traine adjacent the outer side of the last said row; arms connected respectively to the said bars near the Iower ends thereotl and adapted for farr'vinfi' cultivating' tools; two other closely adjacent angularly adjustable vertical bars iarricd by the main traine adjacent the inner side ot the last said row; arms connected respectively to the last said bars near the lower encs tliereo;p and adapted for carry'ng fiiltivatini1' tools; two pairs of arms adjacent the upper ends ol" the lars ot Jhe respective pairs; four segments for holding;` the respective adjusting' arms in adjusted positions. two ot the segments being in linee relation to the coi'respondinov 'trames and the other two segggments being angularly mo 'able rc'fspectively about the aXes of the correspondingi' bars; and a linlc coiinectingr the last said seggiiients Ytoi' causing' t'lieni to iiiove simultaneously.

1G. ln a cultivater ot the class descril'ied, the coinbii'iatioii with a main traine7 a power driven supporting' and driving means for the frame` and a inanually controllable steering n'ieans for the traine in advance olf the steering means, all of the said parts being ynarro and adapted to travel between two n; and. l

rows ot plant ol' two whee stipporlcd aule iliary lran'ie-r owed ndj:.iccut the rear oi tht'l niain ltr; "te sides, thereof and each :f ol' plan A aging); cidifiizlti t'tit'i'it'il by thc 'i i, respective iiixi i carried iii part on the y ti'aiies and operable i i Y, iiV adjust@ ino' the tools oit 'inv .irren eiideiitlv ot the others verticall'v `in p: listin. .y

l?. ln a cultivator o'l' the class dcsci'ibeihy the combination with a infin t'rz ne, :i power driven supporting and driving' means 'tor the trame, and a inaiiually controllable steering' means l'or the traine, all ot 'the said parts being' narrow and adapted to 'travel between two 'rows o'l plants; of two wheel supported niixiiiaiv 'trames loca ted :it opposite sides oi" the .main t 'ame and each arched to pass over a row ot plants; t'our groups o? cultivating' tools ot which two are :arried by the niain t'raine and two by the respective :,iiixiliary trames; and means lor laterally adjusting; the tools o'f any group independently ot the others.

1S. ln a cultivator the class described, the con'ibination with main traine, io ver driven supporting` and driving means tor the traine, and a manually controllable steering;` means toi.l the traine, all o't`i the said parts being narrow and adapted to travel between two rows ot plants; ot two wheel siipporteifl auxiliary trames located at opposite sides of the main 'traine and each arched to pass over a row 01"' plants; tour tool arms pivoted for movement about vertical axes, two ot' the arms being' carried by the inain traine and two by the respective auxiliary frames; cultivating tools on the several arris; and means tor locking the several arms in different'r positions ot angular adjustinent.

lt). ln a ciiltivator ot the class described, the combination with a. main traine, a power driven supporting and driving moers itor the traine, and a manually controllable steeiI4 ing` means for the traine7 all ot the said parts being narrow and ioapted to travel between two rowsot' plants; oit tivo wheel supported auxiliary trames located at opposite sides of the main traine an d each arched to pass ove a row of plants; tout' groups ot culti *ating tools ot which two are carried by the niain traine and two by the respective auxiliary trames; means operable Vi'roiii the main 'l 'anic Ylor moi/ing the cultivatii'ig tools vertically into or out of' ground engr positions; and means :tor laterally adjustingf; the tools et any group indepenilently olf the others.

Q0. ln a cultivator ot the class described, the combination with a main traine, a power driven supporting and driving` means tor llo fili

the traine, and a manually controllable steering means tor the trame; all oit the said parts being narrow and adapted to travel between two rows ot ilants; of two wheel suppinfted auxiliary ies located at opposite sides oit the main llame and each arched to over-a row oit plants; four groups olf cultivatiiiig tools ot which two are carried by the main 'frame and two by the respective auxiliary Aframes; vmeans ttor vertically movingthe cultivating tools of any group independently of the others into or out ot grouiul engaging position; and means tor laterally .adjusting the tools ot' any group `independently of the others.

2l. In a cultivator ot the class described; (be combination with a main lrame, a power driven supporting and driving means lor the trame, and. a manually controllable steen .ing means for the trame, all ot the said j'iarts being narrow and adapted to travel between two .rows ot plants; ot two wheel supported auxiliary trames located. at opposite sides ot the main 'traine and each arched to pass `over a row ot plants; tour tool arms pivoted for movement about vertical axes, two ot the arms being carried by the main 'frame and two by the respective auxiliary frames cultivating tools on the several arms; mea-ns itor locking the several arms in ditilerent positions o't angular adj'l'istn'ient; and means tor vertically moving any oit the `said arms independently of the others to bring the corresponding cultivating tools into or out ot ground engaging position.

22, ln a cultivator ot the class described, (lio combination with a main trame; power driven supporting and driving means tor the trame, and a manually controllable steering means for the 'trame;.all ot' 'the said parts being narrow and adapted to travel between two rows ot plants; ot two `wheel supported auxiliary trames located at oppfr silo sides oit the main frame and arched to ri-ispectively pass over two rows ot plants; cultivating tools carried by the main and auxiliary ran'ies respectively and arranged to travel along the opposite sides ot the said rows ot plants; and .means operable Jfrom. the main trame 'lor laterally adjusting tools on opposite sides of a row of plants simultaneously and in the same directions 2&3. ln a culti'vator ot the class described; the combination with a main trame, a power driven supjiiorting and driving means for the trame, and manually controllable steering means ttor the trame; all of the said parts being narrow and adapted to travel between two rows of plants; ot two wheel supported auxiliary trames located at opposite sides otl the main trame and arched to respectively pass over two rows of plants; cultivating tools carried by the main and auxiliary frames respectively and arranged to travel along the opposite sides of thesaid rows of means tor the trame; all of the said parts being narrow and adapted to travel between two rows o'r plants; ot two wheel supported 4auxilinry trainee located at opposite sides of the main Ytrame and arched to respectively pass over t vo rows oit plants; tour tool arms pivoted .tor movement about vertical axes, two oit the arms being carried by the main and two by the respective auxiliary trames; cultivating tools on the several arms and arranged to travel along opposite sides ot the said rows ot plants; and means operable from 'the mainframe for angularly adjusti'ng the two arms on opposite sides of a row ol plants sin'iultancously and in the same directions.

In a cultivator oit the class described, tbc combination with a main frame, a power driven supporting and driving means for the ..i.`rame; and a manually controllable steering means l or the trame; all of the said parts being` narrow and adapted to travel between two rows ot plants; of two wheel supported. auxiliary :trames located at opposite sides of the main trame and arched to respectively pass over two rows of plants; cultivating tools carried by the main and auxiliary 'frames respectively and arranged to travel along the opposite sides of the said rows ot' plants; means operable from the main frame tor laterally adjusting tools on opposite sides oi a row ot' plants simultaneously and inthe same directions; and supplemental means whereby preliminary lateral adjustments ot the said tools may be eifected. y

26. In a cultivator of the class described, the combination with a main traine; a power driven supporting and driving means for the traine; and a manually controllable steering means for the trame, all ot the said parts being narrow and adapted to travel between two rows ot plants; ot two wheel supported auxiliary frames located at opposite sides of the main 'trame and arched to respectively pass over two rows ofplants; cultivating tools carried by the main and auxiliary frames respectively and arranged to travel. along the opposite sides of the said rows ot plant, and two separate means independently operable from the main iframe -for lat erally adjusting tools on opposite sides ot the respective rows simultaneously and in the same directions.

2". In a cultivator of the class described; the combination with a main frame; a power driven supporting and driving means .tor tlie trame, and a manually controllable steering means .tor the trame, all of the said parts being .narrow and adapted to travel between two rows ot plants; oi' two wheel supported auxiliary trames located at opposite sides ot the main traine and arclied to respectively pass over two rows ot plants; cultivating tools carried by the main and auxiliary trames respectively and arranged to travel alone; the opposite sides ol" the said rows ot' plants;l two separate means independently operable Ntroni the main frame tor laterally adjusting tools on opposite sides ot the respective rows siinnltaneously and in the same directions and means tor moving` the said tools vertically to brine; them into or outot ground engaging` positions.

28. In a cnltivator ot the class described,

the combination with a main t' "aine, a power driven supportingand driving mea-ns for the traine, and a, manually controllaliile steeringr means tor the traine, all ot the said parts being narrow and adapted to travel. between two rows ot' plants;l of two wlieel supported auxiliary t ames located at opposite sides o't the nia-in Jtraine and arched to respectively pass over two rows ot plants; cultivating tools carried by tbe main and auxiliary frames respectively and arranged to travel along the opposite sides ot the said rows ot plants, some ot the said tools being normally tired against lateral movement and others beine' Vfreely movable laterally; and two separate means indeyiendently operablel l'roln the main traine igor laterally adjusting tbe last said tools on opposite sides ol" the respective rows sin'lultai'nously and in the same directions.

29. In a culti 7alor ot ille class described.1 lie combination with a main trame, a power lriven supporting; and driving' means tor tbe iranie, and a manually controllable steering means 'tor tbc lframe. all of tlic said parts beineA narrow and adapted to travel between two rows olt plants: ot two Ywliecl siuuiorted auxiliary t' i'ranics locatedv at opposite sides of the main 'trame and arclied to respectively pass over two rows ot plants: cultivatingi tools carried by tlie main and auxiliary trames respectively and arranged to travel along; the oppositie sides ou the said rows ot' plants. some ol tlie said tools being:A normally lined against. lateral movement' and otliers beine' trcely movable laterally: two separate means indepciulcntly operabley from tl'ie main 'traine 'l'or laterally :,uljustincr tlic last said tools on opposite sides oltl'ie respective. rows siinnllaneously and ln (lie .same directions and means wlicreby tlie said normally fixed tools can be laterally adjusted and lield in adjusted positions.

ln testimorrv whereof l a'ltix my si l 'Hl'll'lllilllr N lXON. 

